N.H. Rev. Stat. Ann. § 510:2-a

All writs and other processes shall at the time that they are served upon the defendant indicate on such writ or process the time, place and mode of service made upon the defendant, and shall further indicate any attachments made upon the property of the defendant and the time, place and method of such attachments. Such information shall be placed upon the writ by the sheriff, deputy sheriff, or other person authorized by law who has made such service.